btrfs: scrub: add explicit plugging
authorArne Jansen <sensille@gmx.net>
Sat, 28 May 2011 20:58:38 +0000 (20:58 +0000)
committerChris Mason <chris.mason@oracle.com>
Sat, 4 Jun 2011 12:03:46 +0000 (08:03 -0400)
With the removal of the implicit plugging scrub ends up doing more and
smaller I/O than necessary. This patch adds explicit plugging per chunk.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

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